frankft
It's a thing about being Idiot proof. In today’s day and age everything must be made more fool proof because the average person is getting dumber. Isn't that the way thinks seem to be going? It used to be our fault that when we stick our finder in a fan or spilled scalding hot coffee on ourselves it was due to our stupidity and we accepted that responsibility. But today? Not so. We boast about how smart we are but play stupid at other times.
So, mechanical interlock? It depends upon the liability one want to expose him or herself to. The are attorneys all over the place who are chomping at the bit to get their 1/3rd of the settlement.
We all know what can work be is it approved and listed for the application that it was intended for.
But giving a loaded gun who doesn't have a clue about gun safety is not a wise idea.
Dave